P0122 - Throttle/Pedal Position Sensor/Switch A Circuit Low Input
P0123 - Throttle/Pedal Position Sensor/Switch A Circuit High Input
This is the same sensor design that has been used by Chrysler and other manufacturers for decades, and has an extremely low failure rate. There's nothing you can do to cause it to fail. Given the two codes, it is much more likely there's a corroded or stretched terminal in the connector or a corroded splice. A break in the 5.0 volt feed wire circuit will cause the first code. A break in the ground wire or circuit will cause the second one. Either code could be caused by a break inside the sensor, but one break is uncommon, two different breaks is very unlikely, and to happen with multiple sensors isn't going to happen.
The ground and 5.0 volt feed circuits are shared with other sensors so in most cases a problem with them will set codes for additional sensors. A break in the signal wire will make the voltage seen by the computer go to 5.0 volts and set the second code. To also get the first code might suggest that wire has rubbed through and is grounding to the body intermittently. I'd start with a good visual inspection of the wiring harness.
Thursday, June 19th, 2014 AT 10:04 PM